need a mother and cloning area have a secret jardin 120 for flowering

Ok I have a secret jardin 120.
has anyone had luck putting a mother and a cloning chamber inside on of these? Im willign to give up a 2ft x 2ft by max hiegt for it. inside teh tent.

Would I be getter off buying hte secret jardin 60 and jsut keeping it inside the 120.

Or would i be better off building somethign to fit inside the tent.

I need to keep everythign in the 120

I was even thinking PVC or 2x2 and panda film, but am not sure how to make it 100% light proof.

ill elaborate

I have a 250 watt MH light ill use in it. I figure that is enough for clones mothers and 3-4 vegging at a time.

I am a dirt grower.